LITERATURE REVIEW ON EVALUATION OF PHYSIO-CHEMICAL PROPERTIES OF COSMETIC PRODUCT

A. A. Sivabalan*, R. Sakthi Sundaresan, Sayyid Muhammed Noufan V.T., S. Sindhu Bairavi, B. Sridhar

Cosmetic products must meet specific quality standards to ensure their safety, effectiveness, and consumer satisfaction. The evaluation of physico-chemical properties plays a vital role in assessing product performance, stability, and compatibility with skin. This literature review highlights various physico-chemical parameters such as pH, viscosity, spreadability, density, foaming ability, emulsion type, and rheological behavior, which directly affect the formulation’s quality and shelf life. These properties are critical in determining the product’s texture, appearance, ease of application, and user experience. Standardized testing methods including viscometry, pH metry, centrifugation, stability testing, and microbial analysis are discussed in detail. The review also addresses the influence of environmental conditions and storage on product behavior. Overall, this study emphasizes the importance of thorough physico-chemical evaluation during the formulation and development phases to ensure regulatory compliance, consumer safety, and market success of cosmetic products.